Grinding mechanism



April 12,1927. 1,624,494

. H. MASON ET AL GRI NDI NG MECHANI SM Filed @11.50. 192e e sheets-sheet' 1 "il '12 1927. Apr- H. MASON r-:T A1.

`GRINDINCT MECHANISM Filed Jan. 50. r192e s sheets-sheet' 2- uo n A l :Si 'Y '0D s: A Q) l TQ U) m4 ll l i lI t 'I n `D t fp) n Mz R y b April 12 1927. 1,624,494 H. MASON ET AL GRINDING MECHANISM' Filed Jan. 30. 1926 8 Sheets-Sheet' 5 Y ATTORNEYS.

April 12,1927.

' H. MASON ET AL GRINDI'NG MECHANISM Filed Jan` 50. 1926 B SheetSSheet 4 Aw.. n@ .M.\ WMC hmmm H. wm

April 12, 1927.

H.V MASON ET AL www m mmm@ M y Wm/ 3.... m @We M WwW-MVM* w p N 4 \\\\\.VM\\ a .IHK l? i w W/@Mmm L ism i/@ l "in, Wn? 7.,@

April 12,1927. 1,624,494 H. MASON ET AL GRINDING MEGHANISM Filed Jan. 50. 1926 8 Sheets-Shet' 6 INVENTORS.' HowH/Po Maso/v, WHL ri B/xa Y,

y April 12, 1927.

1,624,494 H. MASON ET AL l @BINDING MECHA'NISM Filed Jan. 30. 1926 8 Sheets-S1166?" 8 Patented Apr. `12, 1927.

UNITED STATES PATENT Q'FFQICjwE,

HOWARD Mason, QF FRAMINGHAM, ,AND WALSPEB B LXBY .AND LEWS BCG-,Alt

m., or Basson. MessAcHUSarrs esswnons a @Hewlett .ENG-QSTEERINTG COM- PANY. or noacnssma MASSACHUSETTS, e QQRPOMTION 9F MASSACHUASEWS! GRInDlNG MECaeNISM- Application filed 'January 30, 1926.

Qur invention relates to grinding mechanism, and moreparticularly aims to provide an improved mechanism ltor grinding the knives or shear blades of tutt y'fabric or so-called moquette looms, carpet shearing machines, and the like textile or other machinery. In certain Irespects our present invention constitutes an'y improvement upon the device disclosed in the Ipatent -to Edgar F. Hathaway :tt-1,469,755, dated Qctober 9., 1923. v

inthe drawings illustrating by Way of eX- ample certain forms ot mechanism embodying our invention:-

F ig. 1 is a general View in iront elevation, illustrating one form o mechanism .embodying our invention as applied yto atutt lfabric ioom;

Fig. 2 is a. vertical section substantially upon the line 2-2 of Fig. 1;

' Fig. 3 is a p lan view illustrating one adjusted position of the mechanisim theloom parts aside from the shear blades and the grinding mechanism supportbeing omitted;

Fig. a is a perspective View of one yof the track supports upon a larger scale;

`Figs. 5 and (i are respectively vertical sectionsupon the lines 5 5 and (5 6 ot' L1, looking in the direction of thearrows;

Fig. T is av vertical cross-sectional view, upon a still larger ..scale, illustrating one position of the grinding mechanismrelative to the knives to be ground;

Fig. 8 is a detail cross-sectional view;

Fig. 9, partly in cross-section land partly in side elevation, illustrates a means which may be employed in adjusting the grinder.;

Fig. 10 is a front elevation o't'the grinding mechanism and supporting means, upon ascale intermediate that or' 1 and Fig. 7

Fig. 11, partly in vertical section and partly in side .elevatiomshows that part of the grinder seen at the lower portion oi' Fig. 7 but adjusted foroperating uponthe blade opposite to the one being ground in said Fig. 7

Fig. 12 is ya substantially yvertical section through the grinder cover as employed in Fig. 11; i

Fig. 13 is a detail vievvY in cross section,

shown.

Fig. y.17 Iis a plan,upon a smaller scale; and

Fig. yllis a view 'similar to-F-ig. 16 ofl a modified lgrinder attachment -for grinding the end faces of the blades. Referring irstto Figs. 1 to 14, We have there 'illustrated one-form of our invention as applied to aftuft fabric loom. EIn Figs. 1 and 2,the`1loom -rame -is indicated as a Wholeat 11, it being Aof any suitable shape o r construction, 'and being provided with supportingbars 2, 3 for the tutt shearing bla-des or'kn'ives 4,5. One Yof s aid blades. herein .the blade 5 nearest the `front ofthe loom, is supported-.tor swinging movement, as at 6, While the other Ablade Ll', near-er .the back ofthe lo0m,has a sliding or-llike motion. Said blades vorknives vvvill accordingly `be referred to hereinafter respectively asfthe slidable orrear -blade vand-the swinging or front blade. 'The path of thewarp yarns and of the jfabricis' indicated in .Fig Qindotted lines lat T, 8,9.

:The grinding .mechanism as 'a Whole is preferably portable `and desirably is construct-edL and arranged so `that it may be quickly attached t -the loonr or positioned thereon -in readiness ito operate'upon the blades. A standard portion ofthe loom-itself, or someeasily attachable-meansymay be employed for supporting the grinder, and the entiregrindingmeelianism vis preferably constructed KAWith"lt his in jfiew. eis shown in Figs. '1-to 14, We vutilize :oiythispurpose the lcross shaft 10 extending betn'ee.n=.the loom sides 11, 1:2 adjacent the arch 13,.this being .the usualshaft about which .passes the means for supporting --the `tuiting .yarn tube frames or"`lpresenting devices, not

CAD

CII

Figs. 8 and 11. The grinder housing has formed at opposite points, herein upon itsy top and bottom as viewed in Figs. 7- and. 11, pairs of opposed flanges 52, 53, either of which maybe slid 'over the depending heads of the bolts accordingly as the front orthe rearknife is to be ground. The grinder unit is securely fixed to the bracket 44 in either of its positions, by tightening down the wing nuts 51.

' Asbest seen in section in Fig. 14, the grinder unit includes a gear case within which the transverse grinder shaft 56 is rotatabley in suitable bearings. On the outer end of said shaft is the gri-nder member or wheel 571 which may be of any suitable type, removably attached to the shaft as by the nut 56. Near the opposite end of said grinder shaft 56 is a bevel gear 58 meshing with a pinion 59 upon the inner end of the drive shaft 60 at substantially right anglesA to the grinder shaft and rotatably supported in suitable bearings in a sleeve 6l projecting from the gearl case. 55. At the outer endv of said drive shaft 60v is a pulley k62 adapted to receive a belt 63 passing motor assembly may be moved about the pivot 46 in one or the opposite directions thereby to tighten or loosen the belt.

Vi`hrough the gearing and. connections above described the grinding member or wheel 5'? is driven from the power source, herein the electric motor 37 travelling with the carriage. lt will be understood, however. that anv outside power source might be employed,` as for example in said patent tol-lathaway, Fig. 'l'.

Desirably the grinder is substantially wholly enclosed so` that the particles of abrasive, chips or sparks7 from the knives, and the like waste matter produced in the grinding process,A and all included herein in the term dust, may be caught andA retained, preventing them from accumulating upon the loom or on the fabric being` woven. For this purpose we have provided an enclosing cover or'hood 67 of Figs. 7, 10and 14, or 66 of Figs. 1, 2, 8, 11 and 12.

Said two covers are substantially similar and are interchangeable, but have oppositely,T directed dust outlet-s 69, respectively, the cover 67 being employed when the front or swinging knife is to be groundl while the other cover 6 8 is for use when working upon the rear or sliding knife.

Theyare of genera druindil form havingV collarA one open endl adapted `to fit over a 71 secured to the grinder gear casing and concentric with the grinder shaft: 5.5- Se.- 1ective1y,feither of the covers may be removably secured to said collar thrOugh screw and slot or like connections, as shown. In the front face of each cover are the openings or slits. 7 2 and 73 respectively, through which the blade to be ground may be brought into contact withV the grinder wheel.

The use for the two covers, withv opposite disposition of waste outlets, will be apparent from the following considerations'. As seen in Figs. 7, 1Q and 14, the grinder is positioned for operating upon the front knife 5. Assuming that the grinder shaft is rotated in al clockwise direction, looking from the front of the loom, as in Fig. 10, the waste will be projected from the point of contact of the grinder and knife in the general direction indicated by the arrow upon the grinder cover in said ligure, that is, to the leftin Fig. 10 and toward the left side of the loom; the outlet 69 for the waste is accordingly upon the left side of the cover 67 as viewed in said figure.

of rotation of the grinder shaft is not,v

changed, as still viewed from the loom front, but the outer face of the cover is then` toward the back of the loom, and, as. viewed. from the back of the loom the direction. of rotation of the grinder shaft is reverse, and@ the waste is projected, still toward the left of the'viewer at the loom rear, but toward the right hand side of the. loom looking from the loom front as in l0. The main dust stream will thus be projected iny a direction agway from the pulley 62 rather than toward it, as in Fig. 10. 'lll/ie effect the same as if no change in the position of the grinder wheel were made butA the work` applied in one insta-nce to the bottom. edge of the wheel and in the other to the top edge. Hence the two. covers 67 and, 68 having differently disposed outlets are neces-` sary in-,ordier to assure the most efficient collection of the dust, whichever blade is being. ground.

Each cover is formed interiorly to provide a suitable passage for collecting andx conducting the dust tothe outlet.` In the cover 67 for working on the front bladethe dust stream goes almost directly to the cover outlet;` in the cover 68 for use when grindingl on the rear blade, the stream of waste is. led partly around. and oven the. wheel, in, the manner best seen 1in Fig. In the cover 67 but a short passage is needed,

iso

while in the rover (3S the penengge .or rlninilier partly surrounds the Wheel. being formed hy the onter will of the Cover :intl :i flange o'S, see Fig. lf2, :icljoeent the `:.jgriiitler wheel.

'llie doet lfroni the grrinilinr operation ie thus letriliietl within the reflpeelii'e iiriiiiler Cover or lioueiiig, :intl is prei'ei'iilily eoniliieleil 'lironi it through the eoi'er oullrl lll? or 'To iiirfl throng-li ai, ile-.il1ile hose or pipe. lo :i ivziste receptacle "i'li proviileil lor the por pose, iiinl shown iii zitter-heil position in here. 2 :ind il lint oiiiitled in other lieureii to prereiit olieeuriiigi; ell other parte. lo innere the roiiioi'iil o'l.1A the eo lietiiigg weinte or llunt We here proi'icletl eiiitiilile iLineuiinitie inerme, herein illuslnil'eil :iii iiiouiitell upon the e:irringo lo in position to ooo ieriite with the niolior :intl grinder. le lie .in in Fien, T iiiiil il) there reeuretl to n proieetinki portion oil" the niotor olnit't :i iron oi.' blower i'l' eneloenil in :i siiitiilile housing 'i'i' eoniiniuiiwitiop; :il Til willi nliitl rrt'epl'ziele or ling To. "liie iiiroiu ing duel entere llie lilon'er liouiiop: nl: the rentrlil aperture T9, pensier: lliroi or :ironinl the lliii :intl into the rereiil'iirle i, n'iiieli in pre'lferiilili7 reiiioviilily zittiiolieil to the blower housing ziiitl, il? tleeired, lieltl in proper e1;- tendetl position :i5` by iiieiiiis oli the erin or wire 8O Seeiiretl :it its outer enil to the ifiee eii l of the ling' :intl :it ite inner enll lo the grinder Carriage.

As previously Stiitetl, the grinding; iiieelniiiisii'i is ntlziptetl lfoi.' tizivereiiig nioveiiienl: lengthwise of the blades to lie ground, the eiirrzigge 56 Slippertint;l luid iiieehiinieiii lieiiigi; nioviihle open the triieli' 'l5 proi'itletl lor the purpose. Afloreiiient olI the marriage along the triieli nini' he ell'eeterl Llireetly in' the liiiiid oli` the operator` or lili' fi-iiiitzilile merlin.m iiisin, either inenufil or lull)` ziutoinzitir. Herein ,tor the purpose, ne liiiife proi'iileil sprocket Wheels Si, 92 :it opposite eiiilil olE the trziek l5, :is heet seen in Fig. l0. :inrl also in Figs. l :incl 3. rotzitiihly support-eti upon forked :iriiis S3, 8l. :incl about nliieli posses :i eproelzet eliiiin S5 eoiineetefl it ite opposite ends to the ceri-inge 3G. Desirziliiljr :i turn-buckle 8G or like tension adjusting ineens is provided at one end olf' the eliiiiii.

As clearly1 seen in Fig. l0, the eliziin eziteiicls 'lroiii one encl of tlie eaiiriiige up :intl around one sprocket Wheel. then through the trfiel: supporting1 tube 25, over the other sprocket Wheel final heel: to the eiirriiigge. By turning one of Sziitl Wheels the eiirriiiggge will thus lie eliiitecl longitiic'linzillqi' of the trzieli. The sprocket Wheel 82. :is herein shown, lniilv fixed npon its slni'lli :i jt-ar il?, iiiesiiingi with ii pinion 8S, Figi'. fl, upon ii stud eliiil't 8) n ioiiiitetl in :i projection ot the erin Sil. gli eriink 90 is secured to sind slieit, hy ineens et' Wliieli the sprocket Wheel S9; iniiy he rotiiteiil, through the. gears deeoribetl, thereby to more noe/.moll

llie eiioii iiiiil lo li'ilreri-:e the mii-ringe :intl gr i nder.

ln iiililyiiig the 'ileviee lo the looin or other infn-linie oi irliieli the ltnii'es :ire to he ground the triielr felioiilrl he eureliilly :itljuffteifl relative lo the knives. il, Sinnliir :icliintiiient in neeeeiiiinif n'lieii iin iiielinetl linil'e or liiii'l'e portion ie lo he* oiiiiil, in flfig. the track ii'izijyv he I). 'lflie proper poeitioii o iinrertziinel by nioi'inpj' the 'iirriiige along it enel notiiio; tliiit the grinder wheel niiiliee proper eoniiziet with the lilmle :it its; various; pointe. lhfe'lerzibly, however, We provide :i tiaiol; gouge eooperiitivoli,T iieeoeiaitecl with the triielr, h i une olf which suoli shifting; oit the ligjiiiiilei :intl eiiri'fige when Settingritlie trut-l; niiiji l e zivoitletl.

Ono 'lioriii ot eiieh (levier. in illustrated in Figi'. i). .lt eoniprisess :i traveler portion Sill slotted to lit the triieli lo, :ind including :i ewingiilile looking piece 952 heltl by :1U eet rrrew 93. whereby the rouge inni' readily lio :ipplieil to or reiiioreil 'troni the treeli'. riliniirilif' it nizii,v lie kept on the tfziek nezir one einl. llepentliiiii ilroiii llio traveler ie :i ine'er ill haring' :it its outer end zi lip 95 :ind :i filiouhler V16 zitlnptenl to trike against the lilziile to he ground. The construction ol" the linger is Such that seid Shoulder occupies ezi- :ielliv the Sonie position relative to the track :is tlirit portion ol. the grinder Wheel Wliiel'i slioultl nnike eontiiet withtlie blade. By nioiiiiif;l this eiiiily niiiiiipiiliitetl gouge along,` the triieli', with its shoulder 9G in Contact with the hliitle, iieeiirnte setting; ol the trziel: ie assured, ohviotinp the use ol tlie grinder iteellz :is ii gouge.

lteierringi' nonv to Figs. l5 to i8, We here there illustrated griiicliiigiI iiieelizinisiii :ilso eiiiliotlyiiie our invention :intl iicliipter'l for operation upon the liliiilee ot' ii ezirpet sheering` niiiehine. ln siieli iiiiieliinee the liliiflee :ire rotary :unl generi lli' ol the spiral type slion'ii. lii Sziirl liguree portie otliei'ii'ine not relerretl to niiiy lie siiiiilor to those in the li: uref; prerioiisly fleserihetl. The ltriielr lo iiiiiy be oeeiiretl in :i i'iniiiiiei' siiniliir to tliiit in Fine. l to 'l-flto zi siiziilit or heir l0 Fig. l?, extending lengthwise olf the knives 9T :it il ffiiiitiible point- :iliore theni. l special lniior support iiiiiiv he pi'oifitletl :For this purpose il? necessary.

ln rotor.;` lilzicles oii this` type it is Sonietinies desirable to griiicl hotli tlie eiicl :linee :intl the lieifelletl t'fiee ol the liliitle. zintl ein: nieeliiinisin ie zicliiptzilile Ylor either oi Seial operzitioiie.

ln Figo. ji :intl lo the grinding ineelizinisiii ire illustrated iii ite position for operating; on the lieif'ellefl i'iiee of the knives. ln this instruire e @over 95S. Substantially the :Feine es the cover 6i' of Figs. 7, l() :incl 141-, ie employed but having ii. lip 99, the edge of which is adapted to seat against one side face of a knife. Upon its opposite facelthe inife to be ground is engaged, by* aiinger 100 upon the cover and :cooperating with said lip `99 to-maintain the grind-er and-,knife in proper `operating relation. Theseries of blades .is permitted to turn freely about its axis so thatas the grinder cari'iageisinoved along one-of the spiral blad-es 9T lthe latter may movesuiiiciently to preserve the. grinding ycontact. n adjusting kscr-civ '101 lii-Xed upon 'the grinder housing or cover and engaging at its opposite end 'al'ug 102 upon the gear casingmay be provided for line adjustm-ent'of saidhousing toward or away from the blade, in substantial parallelism `With the grinder shaft. The finger 100. is [also preferably adjustable vertically, being slidably secured to the face of thegrindercover by 4the slot and bolt connection seen lin Figs. 15 and 16, andlbeingheld transversely by theoverlying flanges lullig. 1S is' shown agrindernnit for-acting upon the outer edges of thellrnives. yin this instance the grinder Wheel 104 is on'a shaft at right angles to that in the forms previously described, being parallel with the motQr shaft, and geared to the `pulley 105. The cover A108 for the grinding Wheel has a vertical arcuate "opening 107 giving access to the grinder, above which opening is the upwardly directed outlet 108 communicating withy the 'hose 74 for conducting the Waste to v the receptacle;

From the foregoing it will be understood that We have devised an improved, readily portable and highly eiiicient grinding mechanism including a carriage and interchangeable grinding units, and Which may easily be attached to a moquette loom or other machine having knives to be ground for operation upon the knives While the latter are in their usual assembled position upon the machine, With resultant greatsaving in labor expense and avoidance of loss of production through idleness of the machine necessarily occasioned if the knives had to be dismounted for grinding.

Our invention is not limited tothe particular embodiments shown and described herein by vvay of illustration, its .scope being setforth in the following claims.

Claims. l

1. In combination with a tuft fabric loom having a pair of opposed knives and a cross shaft adjacent and substantially parallel With the latter, mechanism for grinding said knives, comprising an elongated tubular supporting element, a track extending .along and secured to said element, a plurality of brackets readily detachably securable to said cross shaft, means connecting each bracket to said supporting element in a manner permitting adjustment of the latter transversely of said shaft, and a grinder carriage having l a grinder thereon, said carriage mounted rits opposite ends, a grinder carriage-having a 1 grinder thereon, said carriage finounted for movement along said track -vvithsaid grinder in Working engagement WithI oneorthe` other of said lmivesrselectively, rotatable:members at the opposite ends of said track, vand fa flexibleeilement secured to said carri-age and passing about said rotatable 1n-embers to form a double-runendless Atravelling means for the carriage, one run of said liexiblefelelment extending throughisaid tubular supporting element. i

3. Infmechanism yfor grindingfthe opposed knives-of tuft fabric looms While -in place thereon; a track-supportable upon the loom f above the yknives to be ground; a carriage movable on saidwtrack, .said hcarriage comprising a slide portion and a depending bracket portion; a motor on said slide portion of the carriage and provided with a pulley; and a grinder -unit comprising a rotary grinding element, a shaft therefor, and shaft driving means including a pulley operatively connectable with said motor pulley, said grinder unit land said bracket portion of the carriage provided with cooperating means for securing said unit to the bracket With said grindingv elementl reversible as if about the a-Xis of its driving pulley t0 position it for operation upon one or the other of said opposed knives.

4. In mechanism for grinding the opposed knives of tuft fabric looms While in place thereon; a track supportable upon the loom above the knives to be ground; a carriage movable on said track, said carriage comprising a slide portion and a depending bracket portion; .a motor on said slide portion of the carriage and provided with a pulley; and a grinder unit comprising a rol tary grinding element, a shaft therefor, and shaft driving means including a pulley operatively connectable with said motor pulley, sai-d grinder unit and said bracket portion of the carriage provided with cooperating means for securing said unit to the bracket With said grinding element reversible upon and relative to said bracket to bring said grinding element in position for operation on one or the other of said opposed knives Sii butniaintaining substantially the saine positionoic the grinder pulley and the motor pulley relatively to each other.

5. In mechanism for grinding the opposed knives of tutt fabric looms while in place thereon; a track supportable upon the loom above the knives to be ground; a carriage movable on said track, said carriage comprising a Slide portion and a depending bracket portion; a motor on said slide portion of the carriage. and provided with aI pulley; and a grinder unit comprising a rotary grinding element, a shailt therefor, and shalt driving means including a pulley operatively conneetable with said motor pulley, said grinder unit and said bracket portion ot the carriage provide-d with cooperating means for securing said unit to the bracket with said grinding element reversible by bodily shifting it relatively to the bracket and in a manner to bring either its top or its bottom face into juxtaposed relation therewith, to position the grinding element lor operation upon one or the other of said opposed knives.

(S. In a grinding mechanism particularly adapted for grinding the opposed knives of textile machinery, a carriage traversiblc lengthwise the knife to be ground, a grinder' unit including a rotary grinder and ay shaft therefor having a power receiving member, and supporting connections between said `unit and carriage whereby the unit may be attached thereto in either of two positions so as to bring the grinder to one or the op posite side of the carriage to grind one or the other ot the opposed knives, said connections including a formation comprising a pair ol flanges and a cooperative formation lor reception thereby, one of said formations being on the carriage and the other on the grinder unit, the formation on the grin-der unit being' duplicated on vertically opposed sides thereof for alternative engagement with the forn'iation on the carriage.

7. In a grinding mechanism particularly adapted for grinding the knives of textile machinery, a carriage traversible lengthwise the knife to be ground, a grinder unit in cluding a rotary grinder on an axis at substantially right angles to the kniie to be ground, and supporting connections between said unit and carriage whereby the unit may be attache-d thereto in either of two positions so as to bring the grinder to one or the opposite side ol the carriage, said eonncctions including pairs ot flanges respectively on vertically opposed sides of the grinder unit and selectively engagez'tble with a supporting element on the carriage. y

In testimony whereof, we have signed our names to this specication.

HOWARD MASON. WALTER BIXBY, HUGH LEWIS BOGAN, Jn. 

